The radial groove (also known as the musculospiral groove, radial sulcus, or spiral groove) is a broad but shallow oblique depression for the
radial nerve
The radial nerve is a nerve in the human body that supplies the posterior portion of the upper limb. It innervates the medial and lateral heads of the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial comp ...
and
deep brachial artery.
It is located on the center of the lateral border of the
humerus
The humerus (; ) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a roun ...
bone. Although it provides protection to the radial nerve, it is often involved in compressions on the nerve (due to external pressure due to surgery) that can cause
radial nerve palsy.
See also
*
Intertubercular groove
*
Triceps brachii muscle
Additional images
File:Gray413_color.png, Cross-section through the middle of upper arm.
File:Gray525.png, The brachial artery.
File:Gray818.png, The suprascapular, axillary, and radial nerves.
References
Bibliography
Humerus
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